Embodiments of the present disclosure disclose a data transmission method and a communications device. The method in the embodiments of the present disclosure includes: obtaining, by a first communications device, a transmission mode instruction, where the transmission mode instruction is used to instruct to use a frequency-domain repetition mode to transmit data, and the frequency-domain repetition mode means that same data is repeatedly transmitted on different frequency-domain resources; determining, by the first communications device, the frequency-domain repetition mode based on the transmission mode instruction; and performing, by the first communications device, data transmission with a second communications device in the frequency-domain repetition mode.
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1. A data transmission method, comprising: obtaining, by a first communications device, a transmission mode instruction, wherein the transmission mode instruction instructs to use a frequency-domain repetition mode to transmit data, and in the frequency-domain repetition mode, same data is repeatedly transmitted on different frequency-domain resources, wherein the transmission mode instruction of using the frequency-domain repetition mode is determined based on at least one of a measured value of a reference signal, channel quality indicator (CQI) information, or modulation and coding scheme (MCS) information; determining, by the first communications device, the frequency-domain repetition mode based on the transmission mode instruction; and performing, by the first communications device, data transmission with a second communications device according to the frequency-domain repetition mode.
This invention relates to wireless communication systems, specifically methods for improving data transmission reliability in challenging channel conditions. The problem addressed is the degradation of signal quality due to frequency-selective fading, where certain frequency bands experience significant signal attenuation. The solution involves a frequency-domain repetition mode, where the same data is transmitted multiple times across different frequency-domain resources (e.g., subcarriers or subbands) to enhance robustness. The method is implemented by a first communications device, such as a base station or user equipment, which receives a transmission mode instruction specifying the use of frequency-domain repetition. This instruction is determined based on at least one of a reference signal measurement, channel quality indicator (CQI) information, or modulation and coding scheme (MCS) information, which collectively assess the channel conditions. The device then selects an appropriate frequency-domain repetition mode, which defines how data is distributed across frequency resources. During transmission, the same data is sent redundantly on different frequencies to mitigate the effects of fading. The second communications device, such as a receiving user equipment or base station, reconstructs the original data by combining the repeated transmissions, improving reliability without requiring additional time-domain repetitions. This approach is particularly useful in scenarios with limited time resources or high mobility, where traditional time-domain repetition may be inefficient.
2. The data transmission method according to claim 1 , wherein the performing, by the first communications device, data transmission with the second communications device according to the frequency-domain repetition mode comprises: sending, by the first communications device, data to the second communications device according to the frequency-domain repetition mode; or receiving, by the first communications device, data sent by the second communications device according to the frequency-domain repetition mode.
This invention relates to wireless communication systems, specifically methods for improving data transmission reliability in frequency-selective fading channels. The problem addressed is the degradation of signal quality in wireless environments where certain frequency bands experience significant attenuation, leading to errors or dropped transmissions. The solution involves a frequency-domain repetition mode, where data is transmitted or received across multiple frequency subbands to mitigate the effects of selective fading. The method involves a first communications device performing data transmission with a second communications device using this frequency-domain repetition mode. The device either sends data to the second device by repeating the transmission across different frequency subbands or receives data from the second device that has been transmitted in this repeated manner. By distributing the signal across multiple frequencies, the system enhances robustness against fading, improving overall transmission reliability. This approach is particularly useful in scenarios where channel conditions vary significantly across the frequency spectrum, such as in high-mobility or multipath environments. The technique can be applied in various wireless communication standards, including 5G and beyond, to ensure stable data delivery under challenging conditions.
3. The data transmission method according to claim 1 , wherein the obtaining, by a first communications device, a transmission mode instruction comprises: receiving, by the first communications device, the transmission mode instruction sent by the second communications device.
This invention relates to wireless communication systems, specifically improving data transmission efficiency between devices. The problem addressed is the need for flexible and efficient data transmission modes in dynamic communication environments, where devices must adapt to varying conditions such as signal strength, interference, and bandwidth constraints. The method involves a first communications device obtaining a transmission mode instruction from a second communications device. The instruction specifies how data should be transmitted, such as modulation schemes, coding rates, or resource allocation. The first device then transmits data to the second device according to the specified mode. This ensures optimized performance by dynamically adjusting transmission parameters based on real-time conditions. The method includes the first device receiving the transmission mode instruction directly from the second device, enabling immediate adaptation to changing communication states. This approach enhances reliability and throughput by aligning transmission settings with current network conditions, reducing errors and improving efficiency. The system is applicable in various wireless networks, including cellular, Wi-Fi, and IoT environments, where adaptive transmission is critical for maintaining stable connections.
4. The data transmission method according to claim 1 , wherein the obtaining, by a first communications device, a transmission mode instruction comprises: determining, by the first communications device, whether to use the frequency-domain repetition mode to send data; and generating the transmission mode instruction when the first communications device determines to use the frequency-domain repetition mode to send the data.
This invention relates to wireless communication systems, specifically methods for data transmission in scenarios where frequency-domain repetition is used to improve signal reliability. The problem addressed is ensuring efficient and reliable data transmission in environments with challenging propagation conditions, such as high interference or low signal-to-noise ratios, by dynamically selecting transmission modes. The method involves a first communications device determining whether to use a frequency-domain repetition mode for sending data. This decision is based on factors such as channel conditions, interference levels, or network requirements. If the device decides to use frequency-domain repetition, it generates a transmission mode instruction indicating this choice. The frequency-domain repetition mode involves transmitting the same data across multiple frequency resources to enhance robustness. The device then sends the data according to the selected mode, ensuring improved reception at the receiving end. The method also includes the first communications device receiving a transmission mode instruction from a second communications device, which may be a base station or another network node. This instruction specifies whether to use the frequency-domain repetition mode. The first communications device then transmits data in accordance with the received instruction, adapting its transmission strategy to optimize performance. This dynamic selection and application of transmission modes help maintain reliable communication in varying conditions.
5. The data transmission method according to claim 4 , wherein after the generating the transmission mode instruction, the method further comprises: sending, by the first communications device, the transmission mode instruction to the second communications device, wherein the transmission mode instruction instructs the second communications device to use the frequency-domain repetition mode to transmit data.
This invention relates to wireless communication systems, specifically methods for improving data transmission efficiency in scenarios with high mobility or poor channel conditions. The problem addressed is the need for reliable data transmission when devices experience rapid signal fluctuations or interference, which can degrade performance in conventional transmission schemes. The method involves a first communications device generating a transmission mode instruction based on channel quality feedback from a second communications device. The instruction selects a frequency-domain repetition mode, where data is transmitted across multiple subcarriers or frequency resources to enhance robustness. After generating the instruction, the first device sends it to the second device, directing the second device to use this repetition mode for subsequent data transmissions. This approach mitigates the effects of fading and interference by leveraging frequency diversity, ensuring more reliable data delivery in challenging environments. The method may also include the first device determining a repetition factor or pattern for the frequency-domain repetition, which is then communicated to the second device. The repetition mode can involve transmitting the same data symbols across different subcarriers or using distributed resource allocation to spread the transmission over the frequency domain. This technique is particularly useful in high-mobility scenarios or when operating in frequency-selective channels. The overall system improves transmission reliability without requiring excessive power or bandwidth overhead.
6. The data transmission method according to claim 4 , wherein after the generating the transmission mode instruction, the method further comprises: sending, by the first communications device, the transmission mode instruction to the second communications device, wherein the transmission mode instruction indicates that the first communications device uses the frequency-domain repetition mode to send the data.
This invention relates to wireless communication systems, specifically improving data transmission reliability in scenarios with poor channel conditions. The method involves a first communications device generating a transmission mode instruction to switch to a frequency-domain repetition mode, where data is transmitted across multiple frequency resources to enhance robustness against interference and fading. After generating the instruction, the device sends it to a second communications device, indicating that subsequent data transmissions will use this mode. The frequency-domain repetition mode distributes the same data across different frequency subcarriers or subbands, mitigating the impact of localized channel impairments. This approach is particularly useful in high-mobility or low-SNR environments where traditional time-domain repetition may be less effective. The method ensures reliable data delivery by leveraging frequency diversity, reducing the likelihood of data loss due to frequency-selective fading. The transmission mode instruction may also include parameters such as the number of repetitions or specific frequency resources to be used, allowing dynamic adaptation to varying channel conditions. This technique improves communication reliability without requiring additional time resources, making it suitable for latency-sensitive applications.
7. The data transmission method according to claim 4 , wherein the transmission mode instruction comprises an indication identifier, the frequency-domain repetition mode comprises at least two repetition manners, the indication identifier has a corresponding mapping relationship with one of the at least two repetition manners, and the determining, by the first communications device, the frequency-domain repetition mode based on the transmission mode instruction comprises: determining, by the first communications device, a repetition manner in the frequency-domain repetition mode based on the indication identifier in the transmission mode instruction and the mapping relationship.
This invention relates to wireless communication systems, specifically methods for data transmission in scenarios requiring frequency-domain repetition. The problem addressed is efficiently selecting and implementing frequency-domain repetition modes to improve transmission reliability without excessive overhead. In wireless communications, especially in high-mobility or low-SNR environments, data transmission may require repetition to ensure reliable reception. However, existing methods often lack flexibility in adapting repetition schemes to varying channel conditions. The invention describes a data transmission method where a first communications device (e.g., a base station or user equipment) determines a frequency-domain repetition mode based on a transmission mode instruction received from a second communications device. The transmission mode instruction includes an indication identifier that maps to one of at least two available repetition manners. The first communications device uses this identifier and a predefined mapping relationship to select the appropriate repetition manner. The repetition manners may include different patterns of frequency-domain resource allocation, such as distributed or localized repetitions, to optimize performance based on channel conditions. This approach allows dynamic adaptation of repetition schemes without requiring extensive signaling, reducing overhead while maintaining transmission reliability. The method ensures efficient use of frequency-domain resources by selecting the most suitable repetition manner based on the indication identifier, improving overall system efficiency and reliability.
8. A communications device, comprising: a processor; and a non-transitory computer-readable storage medium coupled to the processor and storing programming instructions for execution by the processor, the programming instructions instruct the processor to: obtain a transmission mode instruction, wherein the transmission mode instruction instructs to use a frequency-domain repetition mode to transmit data, and in the frequency-domain repetition mode, same data is repeatedly transmitted on different frequency-domain resources, wherein the transmission mode instruction of using the frequency-domain repetition mode is determined based on at least one of a measured value of a reference signal, channel quality indicator (CQI) information, or modulation and coding scheme (MCS) information; determine the frequency-domain repetition mode based on the transmission mode instruction; and perform data transmission with a second communications device according to the frequency-domain repetition mode.
A communications device includes a processor and a non-transitory computer-readable storage medium storing programming instructions. The device obtains a transmission mode instruction specifying the use of a frequency-domain repetition mode for data transmission. In this mode, identical data is repeatedly transmitted on different frequency-domain resources. The transmission mode instruction is determined based on at least one of a measured reference signal value, channel quality indicator (CQI) information, or modulation and coding scheme (MCS) information. The device then determines the specific frequency-domain repetition mode from the instruction and performs data transmission with another communications device according to this mode. This approach improves reliability in wireless communications by leveraging frequency diversity, particularly in challenging channel conditions. The system dynamically selects the repetition mode based on channel quality metrics, optimizing transmission efficiency and robustness. The solution is applicable in wireless networks where signal integrity is critical, such as in low-power or high-interference environments. The device's programming instructions enable adaptive transmission strategies to enhance data delivery performance.
9. The communications device according to claim 8 , wherein the programming instructions instruct the processor to: send data to the second communications device according to the frequency-domain repetition mode; or receive data sent by the second communications device according to the frequency-domain repetition mode.
This invention relates to wireless communications devices configured to operate in a frequency-domain repetition mode. The problem addressed is improving data transmission reliability in wireless networks by leveraging frequency-domain repetition, where data is transmitted or received across multiple frequency resources to enhance robustness against interference and fading. The communications device includes a processor and memory storing programming instructions. The instructions configure the processor to send or receive data to/from a second communications device using a frequency-domain repetition mode. In this mode, data is transmitted or received across multiple frequency resources, such as subcarriers or subbands, to exploit frequency diversity. The device may also determine a frequency-domain repetition pattern, which defines how data is distributed across the frequency resources. This pattern can be based on system parameters, channel conditions, or predefined configurations. The device may further adjust transmission parameters, such as modulation and coding schemes, to optimize performance in the frequency-domain repetition mode. Additionally, the device can support hybrid operation, where data is transmitted or received using both frequency-domain repetition and time-domain repetition modes, depending on network conditions. This invention improves wireless communication reliability by leveraging frequency-domain repetition to mitigate the effects of frequency-selective fading and interference, particularly in challenging environments.
10. The communications device according to claim 8 , wherein the programming instructions instruct the processor to: receive the transmission mode instruction sent by the second communications device.
A communications device is configured to dynamically adjust its transmission mode based on instructions received from another communications device. The device includes a processor and a memory storing programming instructions that, when executed, enable the device to receive a transmission mode instruction from a second communications device. This instruction specifies how the device should modify its transmission parameters, such as modulation scheme, coding rate, or power level, to optimize communication performance. The device may also include a transceiver for sending and receiving data, and a controller to manage the transmission adjustments. The transmission mode instruction may be sent in response to changing network conditions, such as interference levels, signal strength, or bandwidth requirements. By dynamically adapting its transmission mode, the device improves reliability, efficiency, and throughput in wireless communication systems. This approach is particularly useful in environments where communication conditions vary frequently, such as in mobile networks or IoT deployments. The device may also include error detection and correction mechanisms to ensure accurate transmission mode adjustments. The system ensures seamless communication by allowing real-time adjustments without manual intervention.
11. The communications device according to claim 8 , wherein the programming instructions instruct the processor to: determine whether to use the frequency-domain repetition mode to send data; and generate the transmission mode instruction when the processor determines to use the frequency-domain repetition mode to send the data.
A communications device is configured to optimize data transmission by selectively using a frequency-domain repetition mode. The device includes a processor and a memory storing programming instructions that, when executed, enable the processor to determine whether to use the frequency-domain repetition mode for sending data. If the processor decides to use this mode, it generates a transmission mode instruction to implement it. The frequency-domain repetition mode involves transmitting the same data across multiple frequency subcarriers or subbands to improve reliability and robustness in challenging communication environments, such as those with high interference or fading. The device may also include a transceiver for sending and receiving data, and the processor may further analyze channel conditions, signal quality metrics, or other factors to decide when to apply the frequency-domain repetition mode. This selective use of repetition helps balance transmission efficiency and reliability, ensuring data integrity without unnecessary overhead. The device may be part of a wireless communication system, such as a cellular network, Wi-Fi, or other radio-based infrastructure.
12. The communications device according to claim 11 , wherein the programming instructions instruct the processor to: send the transmission mode instruction to the second communications device, and the transmission mode instruction instructs the second communications device to use the frequency-domain repetition mode to transmit data.
This invention relates to wireless communications devices and methods for improving data transmission reliability in frequency-selective fading channels. The problem addressed is the degradation of signal quality in such channels, where certain frequencies experience significant attenuation, leading to errors or dropped transmissions. The solution involves a system where a first communications device sends a transmission mode instruction to a second communications device, directing it to use a frequency-domain repetition mode for data transmission. In this mode, the same data is transmitted across multiple frequency subcarriers or subbands, increasing redundancy and improving the likelihood of successful reception even if some frequencies are heavily attenuated. The first device may also receive and process the data transmitted in this mode, extracting the redundant information to reconstruct the original data accurately. This approach enhances robustness without requiring additional time-domain repetitions, making it suitable for high-mobility or high-interference scenarios. The system may be implemented in various wireless standards, including 5G and beyond, where frequency-selective fading is a common challenge. The invention focuses on dynamic adaptation of transmission modes based on channel conditions, ensuring efficient and reliable communication.
13. The communications device according to claim 11 , wherein the programming instructions instruct the processor to: send the transmission mode instruction to the second communications device, and the transmission mode instruction indicates that the communications device uses the frequency-domain repetition mode to send the data.
This invention relates to wireless communications systems, specifically improving data transmission reliability in frequency-selective fading channels. The problem addressed is the degradation of signal quality in such channels, where certain frequencies experience significant attenuation, leading to data loss or errors. The solution involves a communications device that dynamically adjusts its transmission mode to mitigate these effects. The communications device includes a processor and memory storing programming instructions. The device is configured to determine a transmission mode based on channel conditions, such as signal-to-noise ratio (SNR) or channel state information (CSI). When frequency-domain repetition is selected, the device transmits the same data symbols across multiple subcarriers or frequency bands. This redundancy compensates for fading by ensuring that at least some copies of the data are received reliably. The device also communicates with a second communications device, sending a transmission mode instruction to indicate the use of frequency-domain repetition. This allows the receiving device to decode the data correctly by accounting for the redundancy. The system may further include error detection and correction mechanisms to enhance reliability. By adaptively selecting transmission modes, the invention improves data integrity in challenging wireless environments.
14. The communications device according to claim 11 , wherein the transmission mode instruction comprises an indication identifier, the frequency-domain repetition mode comprises at least two repetition manners, and the indication identifier has a corresponding mapping relationship with one of the at least two repetition manners; and the programming instructions instruct the processor to: determine a repetition manner in the frequency-domain repetition mode based on the indication identifier in the transmission mode instruction and the mapping relationship.
A communications device is designed to optimize data transmission in wireless communication systems, particularly in scenarios requiring frequency-domain repetition to improve reliability. The device includes a processor and memory storing programming instructions that enable dynamic selection of repetition modes. The transmission mode instruction contains an indication identifier that maps to one of multiple available repetition manners within a frequency-domain repetition mode. The processor determines the specific repetition manner to use based on this identifier and a predefined mapping relationship. This allows the device to adapt its transmission strategy according to channel conditions or network requirements, enhancing efficiency and reliability. The repetition manners may include different patterns or configurations for repeating data across frequency resources, such as subcarriers or resource blocks, to mitigate interference or improve coverage. The device can be part of a user equipment (UE) or a base station, supporting various wireless communication standards like 5G or beyond. The invention addresses the need for flexible and efficient data transmission in diverse wireless environments.
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November 26, 2019
March 15, 2022
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